pg dump table

One, database upgrade 9.4 to 9.51.pg_dump Import and export (used when data volume is small)Postgres User Login$ pg_dumpall > Db_export.out$ env|grep LANGLang=en_us. UTF-8If the database character set is en_US. UTF-8, the system character set is

PostgreSQL physical file ing We know that in PG, each relation, that is, the table, has several fork mappings. "MAIN" fork is used to store the data in the master table, "FSM" fork is used to manage the free space, and "visibility" fork is used to

After being acquired by sun and oracle, Mysql has not been acquired by the oracle giant. On the contrary, it has been developing very fast in recent years. everyone knows that oracle is not doing well with mysql, the open-source market will be

Introduction to C development tools in Linux-general Linux technology-Linux programming and kernel information. The following is a detailed description. The Linux release contains many software development tools. many of them are used for C and C ++

The Linux release contains many software development tools. many of them are used for C and C ++ application development. this article describes the tools that can be used for C application development and debugging in Linux. the purpose of this

Select sum (bytes) from dba_segment: waiting for 'gc cr request', dba_segmentgcSO: 0x5533efea0, type: 4, owner: 0x554631060, flag: INIT/-/0x00 if: 0x3 c: 0x3Proc = 0x554631060, name = session, file = ksu. h LINE: 12624 ID:, pg = 0(Session) sid: 388

Mysql在被sun，继而被oracle收购之后，并没有被oracle这个巨人雪藏，反而近几年的发展速度极为之快，谁都知道，你oracle做不好mysql，开源的市场就会被别人取代，pg，MariaDB，percona

Here a simple note, the National Day overtime recovery of a customer's 2 sets of Oracle RAC database, the entire recovery process, 2 sets of RAC similar, so here is a set of database recovery process as an example of simple analysis. Because the

Here is a simple record of the two Oracle RAC databases of a customer who worked overtime for the National Day. During the recovery process, the two rac databases were similar, therefore, we will take the restoration process of a set of databases as

Initdb will specify a PGDATA directory, which is where PostgresQL stores data, such as:/var/lib/pgsql/10/data.====== Display Data Catalog1. Enter PsqlSudo-u Postgres Psql2. Locate the Data directorypostgres=# SHOW data_directory;Data_directory-------